Home / 92,212.20-138,318.30-91,337.40

Finding the Fourth Proportional to 92,212.20, 138,318.30 and 91,337.40

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Solution

The fourth proportional to 92,212.20, 138,318.30 and 91,337.40 is: 137,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,212.20 : 138,318.30 = 91,337.40 : x
  2. Step 2: Convert to fraction form
    92,212.20/138,318.30 = 91,337.40/x
  3. Step 3: Cross multiply
    92,212.20x = 138,318.30 × 91,337.40
  4. Step 4: Simplify right side
    92,212.20x = 12,633,633,894.42
  5. Step 5: Solve for x
    x = 12,633,633,894.42/92,212.20
  6. Step 6: Final answer
    x = 137,006.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.